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<html><head><title>Construction - Neck Attachment</title>

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<h1>Neck Attachment</h1>

<p>Figure 71 below outlines the layout.</p>

<p class="imgbox"><a name="fig-071"></a><img src="../img/fig-071.png" style="max-width: 95%;"/><br/>Figure 71: Overall construction drawing</p>

<p>The shaded long rectangle is the fretboard. It overlaps the soundboard between P1 and P19. Because the soundboard is domed, it might have to be tapered to fit there.</p>

<p>The green line P14-P12 represents the string.</p>

<p>The bridge height over the top is represented by the line P6-P12. Note that the line is perpendicular to the top, not to the reference line.</p>

<p>P14-P15 is the nut height, and P13-P17 is the string "action" at the 12th fret.</p>

<p>Calculations: Variables</p>

<ul>
<li>SL - scale length</li>
<li>NA - neck angle</li>
<li>FT - fretboard thickness</li>
<li>DR - dome radius</li>
<li>BL - body length</li>
<li>BP - bridge position</li>
<li>NH - nut height</li>
<li>SA12 - string action at 12th fret</li>
<li>BH - bridge height</li>
<li>BA - bridge angle</li>
</ul>

<p>According to [<a href="../appx/references.htm#001">Rick Middleton</a>] on pages 84 to 85, SA12 on the 6th string should be 3 to 4 mm on a student's guitar, and 4.5 to 5 mm on a concert guitar. For the 1st string, the values are 2.5 to 3 mm, and 3 to 3.5 mm. The bridge height is 
approximately 8 to 9 mm, and the saddle adds additional 2 to 3 mm.</p>

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